121 144 190 259 ? 466
a) 351
b) 349
c) 374
d) 328

• it increases by multiple of 23. so (A)351 is the ans.
• 9 years agoHelpfull: Yes(0) No(0)
• 121+23*1=144
  144+23*2=190
  190+23*3=259
  259+23*4=351
  ans is 351 .
• 9 years agoHelpfull: Yes(0) No(0)
• option "(a) 351" is correct
  the difference of two numbers is equal to the difference of previous 2 numbers what we get, plus 23
  n=difference of previous number
  n=n+23(formulae)
  144-121=23
  n=23, n=n+23 n=23+23=46 so the difference between 190 and 144 will be 46
  n=n+23, n=46+23=69
  so the difference between 259-190 will be 69 and so on....
• 6 years agoHelpfull: Yes(0) No(0)